@P04752@ composed of alternating units from @U06579@ and @G02658@, and commonly partially esterified with sulfuric acid.
Source: PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1350 [Terms] [Paper]
See also: White Book, 2nd ed., p. 86 [Terms] [Book]